Nissan Maxima Service and Repair Manual: Reclining sensor

Nissan Maxima Service and Repair Manual / Body interior / Automatic drive positioner / DTC/circuit diagnosis / Reclining sensor

Description

  • The reclining motor is installed to the seatback assembly.
  • The pulse signal is input to the driver seat control unit when the reclining is operated.
  • The driver seat control unit counts the pulse and calculates the reclining amount of the seat.

Component Function Check

1. CHECK FUNCTION

  1. Select "RECLN PULSE" in "DATA MONITOR" mode with CONSULT.
  2. Check reclining sensor signal under the following conditions

Nissan Maxima. CHECK FUNCTION

Diagnosis Procedure

1. CHECK RECLINING SENSOR SIGNAL

  1. Turn ignition switch ON.
  2. Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.

Nissan Maxima. CHECK RECLINING SENSOR SIGNAL

2. CHECK RECLINING SENSOR CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect driver seat control unit and reclining motor.
  3. Check continuity between driver seat control unit harness connector and reclining motor harness connector.

Nissan Maxima. CHECK RECLINING SENSOR CIRCUIT

  1. Check continuity between driver seat control unit harness connector and ground

Nissan Maxima. CHECK RECLINING SENSOR CIRCUIT

3. CHECK RECLINING SENSOR POWER SUPPLY

Nissan Maxima. CHECK RECLINING SENSOR POWER SUPPLY

  1. Connect driver seat control unit.
  2. Turn ignition switch ON.
  3. Check voltage between reclining motor harness connector and ground.

Nissan Maxima. CHECK RECLINING SENSOR POWER SUPPLY

4. CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect driver seat control unit.
  3. Check continuity between driver seat control unit harness connector and reclining motor harness connector.

Nissan Maxima. CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT

  1. Check continuity between driver seat control unit harness connector and ground.

Nissan Maxima. CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT 

5. CHECK RECLINING SENSOR GROUND

Nissan Maxima. CHECK RECLINING SENSOR GROUND

  1. Turn ignition switch OFF.
  2. Check continuity between reclining motor harness connector and ground

Nissan Maxima. CHECK RECLINING SENSOR GROUND

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